It's been a busy day for movie posters as we've already brought you new sheets from Harry Potter and the Deathly Hallows - Part 2, Real Steel, and Green with Envy just to name a few. Now, we've got a few more promos to add to the pile thanks to the release of the first posters from Shark Night 3D and The Descendants. Neither sheet does anything particularly exciting as each seems content in reminding moviegoers that Shark Night 3D has sharks (and bikinis) and that Oscar-winner Alexander Payne's (Sideways) The Descendants has, well, George Clooney.For those unaware, David R. Ellis' (Snakes on a Plane) Shark Night 3D stars Sara Paxton, Chris Zylka, and Joel David Moore, and features a group of college friends whose weekend getaway quickly turns sour after an uninvited school of sharks show up. The film hits theaters on September 14th. On the other hand, Payne's The Descendants is the tale of an indifferent husband (Clooney) who is forced to reevaluate his life after his wife is involved in a boating accident. Fox Searchlight is currently eyeing a December 16th release for the film which promises to be an awards-season contender. Hit the jump to check out the new posters.Here's the Shark Night 3D poster that premiered over at IGN:Here's the debut poster for The Descendants [from IMDb]:Here's the official synopsis:

From Alexander Payne, the creator of the Oscar-winning SIDEWAYS, set in Hawaii, THE DESCENDANTS is a sometimes humorous, sometimes tragic journey for Matt King (George Clooney) an indifferent husband and father of two girls, who is forced to re-examine his past and embrace his future when his wife suffers a boating accident off of Waikiki. The event leads to a rapprochement with his young daughters while Matt wrestles with a decision to sell the family’s land handed down from Hawaiian royalty and missionaries.